public static string DateTimeToLiteralWithMs(DbTypeInfo typeDef, object value)
{
var dt = (DateTime)value;
// o: roundtrip date/time pattern, includes milliseconds after dot; used by MS SQL, Postgress
var result = "'" + dt.ToString("o") + "'";
return result;
}
public static string DateTimeOffsetToLiteral(DbTypeInfo typeDef, object value)
{
var dt = (DateTimeOffset)value;
var result = "'" + dt.ToString("o") + "'";
return(result);
}
public DbColumnInfo(EntityMemberInfo member, DbTableInfo table, string columnName, DbTypeInfo typeInfo)
: base(table.DbModel, table.Schema, DbObjectType.Column, member)
{
Member = member;
Table = table;
SetName(columnName);
TypeInfo = typeInfo;
Table.Columns.Add(this);
if (member.Flags.IsSet(EntityMemberFlags.Nullable))
{
Flags |= DbColumnFlags.Nullable;
}
if (member.Flags.IsSet(EntityMemberFlags.Identity))
{
Flags |= DbColumnFlags.Identity;
}
if (member.Flags.IsSet(EntityMemberFlags.ForeignKey))
{
Flags |= DbColumnFlags.ForeignKey;
if (member.ForeignKeyOwner.ReferenceInfo.ToKey.Entity.Flags.IsSet(EntityFlags.HasIdentity))
{
Flags |= DbColumnFlags.IdentityForeignKey;
}
}
if (_sizableTypes.Contains(member.DataType))
{
Flags |= DbColumnFlags.UseParamForLongValues;
}
}
public Func <object, string> ToLiteralConverter; //converter for template
public DbParamInfo(EntityCommandParameter owner, string name, DbColumnInfo sourceColumn, int argIndex)
: this(owner, name, argIndex)
{
SourceColumn = sourceColumn;
Direction = owner.Direction;
TypeInfo = sourceColumn.TypeInfo;
}
public static string DateTimeToLiteralNoMs(DbTypeInfo typeDef, object value)
{
var dt = (DateTime)value;
// 's' - Sortable date/time pattern; conforms to ISO 8601. The custom format string is "yyyy'-'MM'-'dd'T'HH':'mm':'ss"
return("'" + dt.ToString("s") + "'");
}
public static string TimeSpanToLiteralNoMs(DbTypeInfo typeDef, object value)
{
var ts = (TimeSpan)value;
var result = "'" + ts.ToString(@"hh\:mm\:ss") + "'";
return(result);
}
private static string BytesToLiteral(DbTypeInfo typeInfo, object value)
{
if(value == null || value == DBNull.Value)
return "NULL";
var bytes = (byte[])value;
return @"E'\\x" + HexUtil.ByteArrayToHex(bytes) + "'";
}
public DbColumnInfo(EntityMemberInfo member, DbTableInfo table, string columnName, DbTypeInfo typeInfo)
: base(table.DbModel, table.Schema, DbObjectType.Column, member)
{
Member = member;
Table = table;
ColumnName = columnName;
TypeInfo = typeInfo;
Table.Columns.Add(this);
base.GlobalName = DbModelHelper.GetGlobalName(Schema, table.TableName, columnName);
if (member.Flags.IsSet(EntityMemberFlags.Nullable))
{
Flags |= DbColumnFlags.Nullable;
}
if (member.Flags.IsSet(EntityMemberFlags.Identity))
{
Flags |= DbColumnFlags.Identity;
}
if (member.Flags.IsSet(EntityMemberFlags.ForeignKey))
{
Flags |= DbColumnFlags.ForeignKey;
if (member.ForeignKeyOwner.ReferenceInfo.ToKey.Entity.Flags.IsSet(EntityFlags.HasIdentity))
{
Flags |= DbColumnFlags.IdentityForeignKey;
}
}
}
public static string DateTimeToLiteralWithMs(DbTypeInfo typeDef, object value)
{
var dt = (DateTime)value;
// o: roundtrip date/time pattern, includes milliseconds after dot; used by MS SQL, Postgress
var result = "'" + ConvertHelper.DateTimeToUniString(dt) + "'";
return(result);
}
public DbSequenceInfo(DbModel model, string name, string schema, DbTypeInfo dbType, long startValue, int increment)
: base(model, schema, DbObjectType.Sequence, null)
{
Name = name;
DbType = dbType;
StartValue = startValue;
Increment = increment;
FullName = model.Driver.FormatFullName(schema, name);
}
public static string StringToLiteral(DbTypeInfo typeDef, object value)
{
var str = (string)value;
if (!str.Contains('\'')) //fast case
{
return("'" + str + "'");
}
return("'" + str.Replace("'", "''") + "'");
}
public DbSequenceInfo(DbModel model, SequenceDefinition definition)
: base(model, GetSchema(model, definition), DbObjectType.Sequence, definition)
{
Name = definition.Name;
DbType = model.Driver.TypeRegistry.GetDbTypeInfo(definition.DataType, 0);
StartValue = definition.StartValue;
Increment = definition.Increment;
Definition = definition;
FullName = model.Driver.FormatFullName(Schema, Name);
}
public static string DefaultValueToLiteral(DbTypeInfo typeDef, object value)
{
if (value is string)
return StringToLiteral(typeDef, value);
if (value is DateTime)
return DateTimeToLiteralNoMs(typeDef, value);
//Do not use value.ToString()! - it uses current culture and may result in strange output
// For example, if computer has Russian format set in 'Region and Language' dialog, then float numbers like '1.2' result in '1,2'
// which breaks SQL completely
return string.Format(CultureInfo.InvariantCulture, "{0}", value);
}
public static string TimeSpanToLiteralWithMs(DbTypeInfo typeDef, object value)
{
var ts = (TimeSpan)value;
var s = ts.ToString(@"hh\:mm\:ss\.FFFFF");
//special case - if milliseconds is 0, we have an ending dot, and SQL does not like it
if (s.EndsWith("."))
{
s = s + "0";
}
return("'" + s + "'");
}
//constructor loader from the database
public DbColumnInfo(DbTableInfo table, string columnName, DbTypeInfo typeInfo)
: base(table.DbModel, table.Schema, DbObjectType.Column, null)
{
Table = table;
ColumnName = columnName;
TypeInfo = typeInfo;
if (typeInfo.IsNullable)
{
this.Flags |= DbColumnFlags.Nullable;
}
Table.Columns.Add(this);
base.GlobalName = DbModelHelper.GetGlobalName(table.Schema, table.TableName, columnName);
}
//constructor loader from the database
public DbColumnInfo(DbTableInfo table, string columnName, DbTypeInfo typeInfo, bool isNullable)
: base(table.DbModel, table.Schema, DbObjectType.Column, null)
{
Table = table;
SetName(columnName);
// TO FIX
TypeInfo = typeInfo;
if (isNullable)
{
this.Flags |= DbColumnFlags.Nullable;
}
Table.Columns.Add(this);
base.LogRefName = DbModelHelper.JoinNames(table.Schema, table.TableName, columnName);
}
public static string DefaultValueToLiteral(DbTypeInfo typeDef, object value)
{
if (value is string)
{
return(StringToLiteral(typeDef, value));
}
if (value is DateTime)
{
return(DateTimeToLiteralNoMs(typeDef, value));
}
//Do not use value.ToString()! - it uses current culture and may result in strange output
// For example, if computer has Russian format set in 'Region and Language' dialog, then float numbers like '1.2' result in '1,2'
// which breaks SQL completely
return(string.Format(CultureInfo.InvariantCulture, "{0}", value));
}
public virtual DbTypeInfo GetDbTypeInfo(DataRow columnRow)
{
var charSize = columnRow.GetAsLong("CHARACTER_MAXIMUM_LENGTH");
var byteSize = columnRow.GetAsLong("CHARACTER_OCTET_LENGTH");
var dataTypeString = columnRow.GetAsString("DATA_TYPE").ToLowerInvariant();
var prec = columnRow.GetAsByte("NUMERIC_PRECISION");
var scale = columnRow.GetAsByte("NUMERIC_SCALE");
var isNullable = (columnRow.GetAsString("IS_NULLABLE") == "YES");
bool isMemo = (charSize < 0 || byteSize < 0);
var typeDef = Driver.TypeRegistry.FindVendorDbTypeInfo(dataTypeString);
if(typeDef == null)
typeDef = Driver.TypeRegistry.Types.FirstOrDefault(td => td.Aliases.Contains(dataTypeString));
if(typeDef == null)
return null;
var isAutoMemo = Driver.TypeRegistry.AutoMemoTypes.Contains(dataTypeString);
var size = isAutoMemo? -1 : (charSize != 0 ? charSize : byteSize);
var typeSpec = typeDef.FormatTypeSpec(size, prec, scale, isMemo);
var typeInfo = new DbTypeInfo(typeDef, typeSpec, isNullable, size, prec, scale, typeDef.DefaultColumnInit);
// AssignValueConverters(typeInfo); - no need for value converters
return typeInfo;
}
public DbParamInfo(EntityCommandParameter owner, string name, DbTypeInfo typeInfo, int argIndex) : this(owner, name, argIndex)
{
TypeInfo = typeInfo;
Direction = ParameterDirection.Input;
}
public static string BytesToLiteral(DbTypeInfo typeDef, object value)
{
var bytes = (byte[])value;
return "0x" + HexUtil.ByteArrayToHex(bytes);
}
public DbSequenceInfo(DbModel model, string name, string schema, DbTypeInfo dbType, long startValue, int increment)
: base(model, schema, DbObjectType.Sequence, null)
{
Name = name;
DbType = dbType;
StartValue = startValue;
Increment = increment;
FullName = model.Driver.GetFullName(schema, name);
}
public DbColumnInfo(EntityMemberInfo member, DbTableInfo table, string columnName, DbTypeInfo typeInfo)
: base(table.DbModel, table.Schema, DbObjectType.Column, member)
{
Member = member;
Table = table;
ColumnName = columnName;
TypeInfo = typeInfo;
Table.Columns.Add(this);
base.GlobalName = DbModelHelper.GetGlobalName(Schema, table.TableName, columnName);
if (member.Flags.IsSet(EntityMemberFlags.Nullable))
Flags |= DbColumnFlags.Nullable;
if (member.Flags.IsSet(EntityMemberFlags.Identity))
Flags |= DbColumnFlags.Identity;
if (member.Flags.IsSet(EntityMemberFlags.ForeignKey)) {
Flags |= DbColumnFlags.ForeignKey;
if (member.ForeignKeyOwner.ReferenceInfo.ToKey.Entity.Flags.IsSet(EntityFlags.HasIdentity))
Flags |= DbColumnFlags.IdentityForeignKey;
}
}
//constructor loader from the database
public DbColumnInfo(DbTableInfo table, string columnName, DbTypeInfo typeInfo)
: base(table.DbModel, table.Schema, DbObjectType.Column, null)
{
Table = table;
ColumnName = columnName;
TypeInfo = typeInfo;
if (typeInfo.IsNullable)
this.Flags |= DbColumnFlags.Nullable;
Table.Columns.Add(this);
base.GlobalName = DbModelHelper.GetGlobalName(table.Schema, table.TableName, columnName);
}
public DbParamInfo(EntityCommandParameter owner, string name, DbColumnInfo sourceColumn, int argIndex)
: this(owner, name, argIndex)
{
SourceColumn = sourceColumn;
Direction = owner.Direction;
TypeInfo = sourceColumn.TypeInfo;
}
public static string StringToLiteral(DbTypeInfo typeDef, object value)
{
var str = (string)value;
if (!str.Contains('\'')) //fast case
return "'" + str + "'";
return "'" + str.Replace("'", "''") + "'";
}
private void InitTableTypeInfo()
{
var msTypeReg = (MsSqlTypeRegistry)this.DbModel.Driver.TypeRegistry;
var userDefinedVendorType = msTypeReg.UserDefinedVendorDbType;
var customTableType = DbModel.CustomDbTypes.First(t => t.Name == MsSqlDbDriver.ArrayAsTableTypeName);
var tableTypeFullName = customTableType.FullName;
ArrayAsTableDbTypeInfo = new DbTypeInfo(userDefinedVendorType, tableTypeFullName, false, 0, 0, 0);
ArrayAsTableDbTypeInfo.PropertyToColumnConverter = ConvertListToDataTable;
}
public static string TimeSpanToLiteralNoMs(DbTypeInfo typeDef, object value)
{
var ts = (TimeSpan)value;
var result = "'" + ts.ToString(@"hh\:mm\:ss") + "'";
return result;
}
public override DbTypeInfo GetDbTypeInfo(Type clrType, int size)
{
var typeInfo = base.GetDbTypeInfo(clrType, size);
if (typeInfo != null)
return typeInfo;
Type elemType;
if ((clrType.IsArray || clrType.IsGenericType) && clrType.IsListOfDbPrimitive(out elemType)) {
var elemTypeInfo = base.GetDbTypeInfo(elemType, 0);
var npgDbType = NpgsqlDbType.Array | (NpgsqlDbType)elemTypeInfo.VendorDbType.VendorDbType; //Pg requires combination of Array and elem type
var arrVendDbType = new VendorDbTypeInfo(elemType.Name + "[]", DbType.Object, typeof(object), null, null, null, null, VendorDbTypeFlags.Array, null, null, (int)npgDbType);
var arrTypeInfo = new DbTypeInfo(arrVendDbType, elemTypeInfo.SqlTypeSpec + "[]", false, 0, 0, 0);
arrTypeInfo.PropertyToColumnConverter = (obj) => ConvertListToArray(elemType, obj);
//ConvertListToArray;
return arrTypeInfo;
}
Util.Throw("Failed to match DB type to CLR type {0}.", clrType);
return null;
}
// Special converters for literal presentations (used in batch mode). Default converter provides too much precision and it blows up
public static string DateTimeToLiteralMsSql(DbTypeInfo typeInfo, object value)
{
if(value == null || value == DBNull.Value)
return "NULL";
var dt = (DateTime)value;
var str = "'" + dt.ToString("yyyy-MM-ddTHH:mm:ss.FFF") + "'";
return str;
}
private static string NumToLiteralWithCast(DbTypeInfo typeInfo, object value)
{
if(value == null || value == DBNull.Value)
return "NULL";
var strValue = value.ToString();
return string.Format("CAST({0} AS {1})", strValue, typeInfo.SqlTypeSpec);
}
public DbParamInfo AddParameter(EntityCommandParameter owner, string name, DbTypeInfo typeInfo, int argIndex)
{
return(AddParameter(new DbParamInfo(owner, name, typeInfo, argIndex)));
}
public static string BinaryToLiteral(DbTypeInfo typeDef, object value)
{
var bin = (Binary)value;
return "0x" + HexUtil.ByteArrayToHex(bin.GetBytes());
}
public static string GuidToLiteral(DbTypeInfo typeDef, object value)
{
var g = (Guid)value;
return("'" + g.ToString() + "'");
}
public static string TimeSpanToLiteralWithMs(DbTypeInfo typeDef, object value)
{
var ts = (TimeSpan)value;
var s = ts.ToString(@"hh\:mm\:ss\.FFFFFF");
//special case - if milliseconds is 0, we have an ending dot, and SQL does not like it
if(s.EndsWith("."))
s = s + "0";
return "'" + s + "'";
}
public static string BinaryToLiteral(DbTypeInfo typeDef, object value)
{
var bin = (Binary)value;
return("0x" + HexUtil.ByteArrayToHex(bin.GetBytes()));
}
private static string ConvertList(object value, DbTypeInfo elemTypeInfo)
{
var strings = new List<string>();
var iEnum = value as IEnumerable;
foreach (var v in iEnum) {
strings.Add(elemTypeInfo.ToLiteral(elemTypeInfo.PropertyToColumnConverter(v)));
}
return string.Join(", ", strings);
}
public static string GuidToLiteral(DbTypeInfo typeDef, object value)
{
var g = (Guid)value;
return "'" + g.ToString() + "'";
}
public DbParamInfo AddParameter(EntityCommandParameter owner, string name, DbTypeInfo typeInfo, int argIndex)
{
return AddParameter(new DbParamInfo(owner, name, typeInfo, argIndex));
}
public static string DateTimeToLiteralNoMs(DbTypeInfo typeDef, object value)
{
var dt = (DateTime)value;
// 's' - Sortable date/time pattern; conforms to ISO 8601. The custom format string is "yyyy'-'MM'-'dd'T'HH':'mm':'ss"
return "'" + dt.ToString("s") + "'";
}
public DbParamInfo(EntityCommandParameter owner, string name, DbTypeInfo typeInfo, int argIndex)
: this(owner, name, argIndex)
{
TypeInfo = typeInfo;
Direction = ParameterDirection.Input;
}
public static string BytesToLiteral(DbTypeInfo typeDef, object value)
{
var bytes = (byte[])value;
return("0x" + HexUtil.ByteArrayToHex(bytes));
}
public DbSequenceInfo(DbModel model, SequenceDefinition definition)
: base(model, GetSchema(model, definition), DbObjectType.Sequence, definition)
{
Name = definition.Name;
DbType = model.Driver.TypeRegistry.GetDbTypeInfo(definition.DataType, 0);
StartValue = definition.StartValue;
Increment = definition.Increment;
Definition = definition;
FullName = model.Driver.GetFullName(Schema, Name);
}
public static string DateTimeOffsetToLiteral(DbTypeInfo typeDef, object value)
{
var dt = (DateTimeOffset)value;
var result = "'" + dt.ToString("o") + "'";
return result;
}
protected virtual void LoadSequences()
{
if (!Settings.Driver.Supports(DbFeatures.Sequences))
return;
var data = GetSequences();
foreach(DataRow row in data.Rows) {
var schema = row.GetAsString("SEQUENCE_SCHEMA");
var name = row.GetAsString("SEQUENCE_NAME");
var dataType = row.GetAsString("DATA_TYPE");
var startValue = row.GetAsLong("START_VALUE");
var incr = row.GetAsInt("INCREMENT");
//find type def
var typeDef = Driver.TypeRegistry.FindVendorDbTypeInfo(dataType);
var typeSpec = typeDef.FormatTypeSpec(0, 0, 0);
var typeInfo = new DbTypeInfo(typeDef, dataType, false, 0, 0, 0, typeDef.DefaultColumnInit);
// add sequence
var seq = new DbSequenceInfo(this.Model, name, schema, typeInfo, startValue, incr);
Model.AddSequence(seq);
}
}
private Type GetMemberType(DbColumnInfo colInfo)
{
var nullable = colInfo.Flags.IsSet(DbColumnFlags.Nullable);
var typeInfo = colInfo.TypeInfo;
var mType = typeInfo.VendorDbType.ColumnOutType;
if(mType.IsValueType && nullable)
mType = ReflectionHelper.GetNullable(mType);
Type forcedType;
if(_config.ForceDataTypes.TryGetValue(colInfo.ColumnName, out forcedType)) {
mType = forcedType;
return mType;
}
if(mType == typeof(byte[])) {
var changeToGuid =
_config.Options.IsSet(DbFirstOptions.Binary16AsGuid) && typeInfo.Size == 16 ||
_config.Options.IsSet(DbFirstOptions.BinaryKeysAsGuid) && colInfo.Flags.IsSet(DbColumnFlags.PrimaryKey | DbColumnFlags.ForeignKey);
if(changeToGuid) {
_guidTypeInfo = _guidTypeInfo ?? _dbSettings.ModelConfig.Driver.TypeRegistry.GetDbTypeInfo(typeof(Guid), 0);
colInfo.TypeInfo = _guidTypeInfo;
mType = typeof(Guid);
}
}
return mType;
}
public static string MySqlStringToLiteral(DbTypeInfo typeDef, object value)
{
if(value == null || value == DBNull.Value)
return "NULL";
var str = (string)value;
//Escape backslash - this is MySql specific
str = str.Replace(@"\", @"\\");
if(!str.Contains('\'')) //fast case
return "'" + str + "'";
return "'" + str.Replace("'", "''") + "'";
}
private static string ConvertBinaryToLiteral(DbTypeInfo typeInfo, object value)
{
var bytes = (byte[])value;
return "x'" + HexUtil.ByteArrayToHex(bytes) + "'";
}
